Speaker
Dr
Camilo Alfredo Garcia Cely
(Université Libre de Bruxelles)
Description
Dark matter self-interactions are a well-motivated
solution to the core-vs-cusp and the too-big-to-fail problems.
They are commonly induced by means of a light mediator, that is also responsible for the dark matter freeze-out in the early universe. Motivated by the fact that such scenario is constrained to corners of the parameter space where the SM and the dark sector are decoupled, I will discuss the possibility that the relic density of a self-interacting
dark matter candidate can proceed from the freeze-out of only annihilations into
SM particles. I will argue that scalar and Majorana dark matter in the mass range of
10 − 500 MeV, coupled to a slightly heavier massive gauge boson, are the only candidates
in agreement with multiple current experimental constraints. I will also discuss prospects of establishing or
excluding these two scenarios in future experiments.
Author
Dr
Camilo Alfredo Garcia Cely
(Université Libre de Bruxelles)